常見例句雙語例句AIM:To observe the changes in dental pulp and periodontal tissues under the application of distraction osteogenesis using tooth-attached intraoral distracter.目的：研究使用牙支抗式牽張器行上頜骨牽張成骨術(shù)后牙髓和牙周的組織學(xué)改變。Methods 15 Mongrel dogs were subjected to be lengthened of the unilateral or bilateral mandibles using the home made type MS 1 mandibular distracter, and the regular X ray examinations were made.方法采用自行研制的MS 1型內(nèi)置式下頜骨骨牽引延長器，對15只犬分別進行下頜骨單側(cè)及雙側(cè)骨牽引延長實驗，X線定期檢查。Objective To introduce the new type of MS - 1 internal mandibular distracter and its applications and to investigate the advantage or disadvantage of the device through an experimental study in dogs.目的介紹自行開發(fā)的內(nèi)置式下頜骨骨牽引延長器，探討其在動物實驗中的應(yīng)用方法與可行性。d.wanfangdata.com.cn 返回 distracter